Ordinary and Partial Differential Equations: Proceedings of the Sixth Conference Held at Dundee, Scotland, March 31 – April 4, 1980

Equivalence of differential operators....Pages 1-16
Some unitarily equivalent differential operators with finite and infinite singularities....Pages 17-25
The land beyond bessel: A survey of higher special functions....Pages 26-45
Nonlinear two-point boundary value problems....Pages 46-54
On nonlinear boundary value problems for an elliptic system in the plane....Pages 55-63
Totally singular extensions of the Cauchy problem for a special class of partial derivative operators with distributional coefficients....Pages 64-73
Complex extensions of a submanifold of solutions of the sine-gordon equation....Pages 74-81
Remark on bifurcation problems with several parameters....Pages 82-87
Asymptotic theory and deficiency indices for fourth and higher order self-adjoint equations: A simplified approach....Pages 88-99
On the spectra of Schrödinger operators with a complex potential....Pages 100-108
Non-modal eigenfunction expansions....Pages 109-118
Asymptotic distribution of eigenvalues of elliptic operators on unbounded domains....Pages 119-128
Generalized hyperanalytic function theory....Pages 129-147
Some spectral gap results....Pages 148-157
A regular left-definite eigenvalue problem with eigenvalue parameter in the boundary conditions....Pages 158-167
Some topics in nonlinear wave propagation....Pages 168-184
An ordering of oscillation types for y (n) + py = 0....Pages 185-192
Fundamental properties of the solutions of quasilinear differential equations of the fifth order....Pages 193-202
Oscillation properties of weakly nonlinear differential equations....Pages 203-209
On boundary integral equation methods in stationary electromagnetic reflection....Pages 210-226
Norm inequalities for derivatives....Pages 227-243
Fixed point theorems....Pages 244-252
Automatic control of errors for invariant imbedding....Pages 253-263
A bound for solutions of a fourth order dynamical system....Pages 264-272
Reducibility of almost periodic linear systems....Pages 273-279
Convergence of solutions of infinite delay differential equations with an underlying space of continuous functions....Pages 280-289
On a system of non linear strongly coupled partial differential equations arising in biology....Pages 290-298
Differential operators with discrete spectrum....Pages 299-305
On spectral theory for the linear selfadjoint equation Fy = λGy....Pages 306-332
Estimates for some free boundary problems....Pages 333-346
A new proof of existence of similarity solutions....Pages 347-355
Symmetry and bifurcation from multiple eigenvalues....Pages 356-365
Convergence to a travelling wave in an initial-boundary value problem....Pages 366-372
Geometric remarks on second order criteria for maxima and minima....Pages 373-376
Variational methods and almost solvability of semilinear equations....Pages 377-384